What does the term organic mean in chemistry? natural containing carbon using no pesticides within the periodic table

In chemistry, the term organic mean containing carbon.

Explanation:

Organic compounds are defined as the compounds which contain carbon, hydrogen and oxygen. Carbon is the main element present in organic compounds.

For example, human body is made up of carbon.

So basically, living species are made up of organic compounds.  

On the other hand, species which do not contain carbon atoms and are non-living in nature are known as inorganic compounds.

For example, diamond, sulfur, water, nitrogen dioxide etc are inorganic substances.

Thus, we can conclude that in chemistry, the term organic mean containing carbon.